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Schedule I - Condensed Financial Information of Registrant (Parent Company Only) - Condensed Statements of Financial Condition (Additional Information) (Details) - $ / shares
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Condensed Balance Sheet Statements, Captions [Line Items]      
Preferred stock, par value (in usd per share) $ 0.01 $ 0.01  
Preferred stock, shares authorized 15,000,000 15,000,000  
Common stock, par value (in usd per share) $ 0.01 $ 0.01  
Common stock, shares authorized 500,000,000 500,000,000  
Common stock, shares issued 112,766,091 112,766,091  
Common stock held by subsidiaries, shares 25,340,287 26,814,213  
Series A Preferred Stock      
Condensed Balance Sheet Statements, Captions [Line Items]      
Preferred stock, shares issued 0 0  
Preferred stock, shares outstanding 0 0 0
Series B Preferred Stock      
Condensed Balance Sheet Statements, Captions [Line Items]      
Preferred stock, shares issued 0 0  
Preferred stock, shares outstanding 0 0 0
Parent Company      
Condensed Balance Sheet Statements, Captions [Line Items]      
Preferred stock, par value (in usd per share) $ 0.01 $ 0.01  
Preferred stock, shares authorized 15,000,000 15,000,000  
Common stock, par value (in usd per share) $ 0.01 $ 0.01  
Common stock, shares authorized 500,000,000 500,000,000  
Common stock, shares issued 112,766,091 112,766,091  
Common stock held by subsidiaries, shares 25,340,287 26,814,213  
Parent Company | Series A Preferred Stock      
Condensed Balance Sheet Statements, Captions [Line Items]      
Preferred stock, shares issued 0 0  
Preferred stock, shares outstanding 0 0  
Parent Company | Series B Preferred Stock      
Condensed Balance Sheet Statements, Captions [Line Items]      
Preferred stock, shares issued 0 0  
Preferred stock, shares outstanding 0 0